Sorry, your browser is unable to play this video.
Please install Adobe Flash™ and try again.
Alternatively upgrade to a modern browser.

The US Olympic committee in Sochi insists that the security and well-being of their athletes is always their primary concern. After the bombing of a train station in Volgograd, Scott Blackmun, the chief executive of the US Olympic Committee, believes that the public perception on security at the Games has changed. He also says the US delegation in Sochi wouldn't complain about heightened security at the Games